a derogatory term used to express disgust with untrustworthy or shallow individuals.

1) one who is full of shit, a liar.
2) one who says or promises something but will then back out (shit out)
3) one who drops their morals for the sake of convenience or to avoid a confrontation
4) (occasionally), a gobsite

An individual who smells like hot garbage, bathes in his or her own urine & lives under a freeway overpass; A subject who is usually addicted to one or more drugs. A derogitory comment usually aimed @ transients, crackheads, or asshole buddies.

a term used for an indiviual, who is lacking any common sense or basic skill to perform even the easiest and simplest tasks. OR someone who cuts corners and often looks for the easiest way out. this indiviual is not trust worthy or dependable for anything even of the littlest importance. someone with no backbone and no balls. A term used mostly in the military.

Dont trust him with anything he is a shitbag.

I heard Pvt Shmuckatelli fucked up again, what a shitbag.

Have u seen the new kid who is tryin out for the football team, no way will he make it, he is a shitbag.